Image processing apparatus
AssigneeMinolta Co., Ltd.
InventorsKazuomi Sakatani, Tetsuya Itoh
Life of this patent
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Abstract
An image processing apparatus includes a brightness extracting element for extracting information relating to brightness from color image data; an image attribute judging element for judging a light-color image portion in a color image; and a brightness change section which changes brightness of the light-color image portion. The image attribute judging element includes a separating device for separating foreground data and background data from the color image data; and a comparing section which, when a difference in brightness between the foreground and the background separated by said separating device is smaller than a predetermined value, judges the foreground data as data of a light-color image portion.
Claims9
An image processing apparatus comprising:
- brightness extracting means for extracting information relating to brightness from color image data;
- image attribute judging means for judging a light-color image portion in a color image;
- and
- a brightness change section which changes brightness of the light-color image portion,
- wherein said image attribute judging means comprises:
- separating means for separating foreground data and background data from the color image data;
- and
- a comparing section which, when a difference in brightness between the foreground and the background separated by said separating means is smaller than a predetermined value, judges the foreground data as data of a light-color image portion.
An image processing apparatus comprising:
- receiving means for receiving color image data;
- first detecting means for detecting brightness of a character portion of the color image data;
- second detecting means for detecting brightness of a background portion of the color image data;
- and
- changing means for changing the brightness of a character portion of the color image data based on result.
Dependencies are inferred from the claim text.